Architectural Design Principles
The Real-Time Phishing Response Architecture™ is governed by three core design principles that apply across all deployment models:
- Synchronous Interception: The defense must operate synchronously — the threat assessment must complete before the user's intended action executes. Asynchronous or post-facto detection is insufficient for preventing credential harvesting or social engineering.
- Minimal Footprint: The detection engine is engineered to operate with minimum computational overhead. The mobile on-device model is ~50MB. The cloud API model introduces sub-50ms latency. These constraints ensure protection does not create friction that causes users to bypass it.
- Deployment Flexibility: No single deployment model is optimal for all organizational contexts. The architecture is designed to allow hybrid configurations — for example, cloud API for email combined with on-device mobile for personal devices — without requiring separate management consoles.
The Response Decision Tree
When a potential phishing interaction is identified, the architecture executes a precise response decision tree based on the confidence score, threat classification, and configured policy:
- High Confidence Threat (>95% confidence): Synchronous block. The link does not resolve. The user is presented with a clear, plain-language explanation of why the interaction was stopped and who to contact for further assistance.
- Medium Confidence (>70%, <95%): Warn and confirm. The user is presented with an intelligent warning explaining the specific risk signals detected, with an option to confirm intentional access (logged for SOC review).
- Low Confidence (<70%): Allow with logging. The interaction proceeds, but the event is logged with full contextual data for SOC review. Repeated low-confidence accesses from the same user or to the same destination auto-escalate to a review queue.
- Post-Incident Remediation: For all blocked or confirmed threats, automated remediation actions are triggered — inbox sweep for similar links, SOC alert with full context, and optional organizational notification.
SIEM and SOAR Integration
The architecture exports all detection events, verdicts, and remediation actions in standard formats (CEF, JSON, Syslog) for integration into SIEM platforms (Splunk, Microsoft Sentinel, IBM QRadar). SOAR playbook triggers are available for automated incident response workflows, allowing organizations to incorporate phishing response into their existing automated security operations processes. Learn how this integrates with the full organizational response in The AI Fraud Prevention Lifecycle™.